[AMRadio] EF Johnson Attenuator


K4TR k4tr at bellsouth.net
Thu May 1 20:27:26 EDT 2008


Thanks

Joe K4TR
----- Original Message ----- 
From: "Bob Peters" <rwpeters at swbell.net>
To: "'Discussion of AM Radio in the Amateur Service'" 
<amradio at mailman.qth.net>
Sent: Thursday, May 01, 2008 8:15 PM
Subject: RE: [AMRadio] EF Johnson Attenuator


> That would be Glen Zook K9STH makes a low power and a High Power...
> He lives in Richardson, TX
>
> Bob W1PE
>
> -----Original Message-----
> From: amradio-bounces at mailman.qth.net
> [mailto:amradio-bounces at mailman.qth.net] On Behalf Of K4TR
> Sent: Thursday, May 01, 2008 5:25 PM
> To: Discussion of AM Radio in the Amateur Service
> Subject: Re: [AMRadio] EF Johnson Attenuator
>
> would you know who this guy is who makes the attenuators.  Thanks for
> the
> other ino.
>
> Joe K4TR
> ----- Original Message ----- 
> From: "Joe Crawford" <crawfish at surfmore.net>
> To: "Discussion of AM Radio in the Amateur Service"
> <amradio at mailman.qth.net>
> Sent: Thursday, May 01, 2008 5:38 PM
> Subject: Re: [AMRadio] EF Johnson Attenuator
>
>
>> There is a ham who makes a more robust version of the Johnson
> Attenuator
>> for $60. plus shipping.The Johnson will dissipate 30 to 35 watts.So I
>> would imagine $50. and up(Johnson collectors would pay up) for it.
> Just my
>> opinion.
>>                                    Joe W4AAB
>> ----- Original Message ----- 
>> From: "Joe Dube" <jdube1 at bellsouth.net>
>> To: <amradio at mailman.qth.net>
>> Sent: Thursday, May 01, 2008 3:03 PM
>> Subject: [AMRadio] EF Johnson Attenuator
>>
>>
>> Does anyone on the list have any idea how much an EF Johnson
> Attenuator
>> box is worth.   This is the device that is placed between the AM
>> transmitter and the liner to drop the RF power from the transmitter to
> a
>> value that a linear amp can use without overdriving the amp.  Any help
>
>> with this will be appriciated as I can not seem to find any reference
> to
>> this unit anywahere. Maybe I am just looking in the wrong place??
>>
>> Joe K4TR
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